CN104829172A - Dry mixed material for wall plastering - Google Patents
Dry mixed material for wall plastering Download PDFInfo
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- CN104829172A CN104829172A CN201510151042.XA CN201510151042A CN104829172A CN 104829172 A CN104829172 A CN 104829172A CN 201510151042 A CN201510151042 A CN 201510151042A CN 104829172 A CN104829172 A CN 104829172A
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- dry mixed
- mixed material
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- walling
- wiped
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Curing Cements, Concrete, And Artificial Stone (AREA)
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Abstract
The invention a dry mixed material for wall plastering, and belongs to the technical field of novel building materials. The dry mixed material comprises, by mass, 13-18% of cement, 8-12% of fly ash, 39-45% of natural sand, 28-35% of broken stone powder, 0.08-0.18% of an additive and 0.1-0.2% of polypropylene fiber. The dry mixed material prepared through adopting the above formula adopts the broken stone powder to substitute natural sand as aggregates in order to prepare a plastering mortar on the premise of guaranteeing the performances of dry mixed materials for plastering, so the problem of environmental pollution due to random stacking of the broken stone powder is solved, the performances of the plastering mortar are improved, and the cost of the plastering mortar is reduced. The crack resistant polypropylene fiber is blended into the mortar, so the crack resistance of the plastering mortar is extremely good.
Description
Technical field
The invention belongs to building material technical field, be specifically related to a kind of walling and wipe one's face with being dry mixed material.
Background technology
Along with greatly developing of construction industry, the concern of people to energy-saving and environmental protection, safety also gets more and more.The factors such as house is founded a capital higher and higher, waste resource is arbitrarily stacked, Summer and winter is more and clearly more demarcated all the time impel the pursuit of construction industry to material of construction quality; New wall material arises at the historic moment thus, because it has the favor that the advantages such as lightweight, intensity is controlled, thermal and insulating performance is good obtain building trade.But because of its many space and water-absorbent is high, often there is cracking, hollowing, the bonding common quality defect such as loosely in common plastering mortar when its surface construction.Therefore, a kind of coating material adapted with new wall material is produced very necessary.
In addition, due to natural sand exploitation can cause river course destroy, seriously polluted, Duo Di relevant departments put into effect forbid random river course exploitation natural sand regulations, cause natural sand resource well sold and in short supply; Meanwhile, production ready mixed concrete rubble used produces rubble powder in the course of processing, and in concrete, use is little, therefore a large amount of rubble powder stacked, also urgently a kind of technology, is turned waste into wealth.
Summary of the invention
For problems of the prior art, the object of the invention is providing a kind of stable performance, walling that natural sand usage quantity is few is wiped one's face with being dry mixed material.
The present invention is realized by the following technical programs:
Described a kind of walling is wiped one's face with being dry mixed material, it is characterized in that, according to mass percentage, composed of the following components: cement 13-18%, flyash 8-12%, natural sand 39-45%, rubble powder 28-35%, additive 0.8-1.8 ‰, polypropylene fibre: 0.1-0.2%.Adopt machine-processed rubble powder and natural sand to mix again and improve sand grain composition, add polypropylene anti-crack fiber and make to wipe one's face by additive and be dry mixed material and reach the high water conservation requirement that water retention is greater than 99%, reduce being dry mixed that ftractureing easily appears when walling is wiped one's face in material, the common quality defect of hollowing.
Described a kind of walling is wiped one's face with being dry mixed material, it is characterized in that, according to mass percentage, composed of the following components: cement 13-15%, flyash 10-12%, natural sand 40-42%, rubble powder 33-35%, additive 1.2-1.8 ‰, polypropylene fibre: 0.1-0.2%.
Described a kind of walling is wiped one's face with being dry mixed material, it is characterized in that described additive is the mixture of any one or more in wilkinite, hydroxypropyl methyl cellulose ether, redispersable latex powder.Wherein, wilkinite take montmorillonite as host powder, montmorillonite effective content >=50%, there is smoothness, swelling property, water-retentivity, hydroxypropyl methyl cellulose ether selects high purity cotton fibre, in the basic conditions etherificate and obtaining, and has water-retentivity, strengthens the effects such as cohesiveness, Redispersable latex is the EVA rubber powder of Wa Ke company, has effects such as improving mortar snappiness, wear-resistant type, cohesive force.
Described a kind of walling is wiped one's face with being dry mixed material, and it is characterized in that described wilkinite accounts for walling and wipes one's face with the 0.5-0.9 ‰ being dry mixed material, described hydroxypropyl methyl cellulose ether accounts for walling and wipes one's face with the 0.1-0.15 ‰ being dry mixed material; Described redispersable latex powder accounts for walling and wipes one's face with the 0.2-0.75 ‰ being dry mixed material.
Described a kind of walling is wiped one's face with being dry mixed material, and it is characterized in that described rubble powder maximum particle diameter is 3.25mm, fineness modulus is 1.8.
Described a kind of walling is wiped one's face with being dry mixed material, it is characterized in that the ratio of described rubble powder and natural sand is rubble powder: natural sand=1:1.0-1.5.This rubble powder coordinates with the ratio of natural sand, mortar grating can be made good, improve mortar degree of compactness, simultaneously, rubble powder mix the water retention property that can improve mortar, for providing sufficient water and gelling material generation hydration reaction after sand finish, guarantee mortar later strength.
Described a kind of walling is wiped one's face with being dry mixed material, it is characterized in that described polypropylene fibre is formed by propylene polymerization, and its diameter is 45 μm, and length is 6-8mm.This polypropylene fibre has that lightweight, intensity are high, good springiness, high abrasion, the feature such as corrosion-resistant, add the cohesive force that can significantly improve mortar in mortar, greatly reduce mortar cracking.
Cement used in the present invention is 42.5 ordinary Portland cements, is adopted flyash to be F class II level flyash, it is on the basis meeting technical requirements, also there is good economy, natural sand of the present invention is Min River medium sand, silt content is 1.6%, fineness digital-to-analogue is 2.3, and apparent density is 2620kg/m3.Rubble powder of the present invention is the particle of particle diameter≤3.25mm after rock failure, obtained after washing, oven dry, screening, silt content is 2.5%, fineness modulus is 1.8, apparent density is 2560%, and " mud powder " in rubble powder is levigate mineral powder, can improve the water retention property of mortar after mixing, for providing sufficient water and gelling material generation hydration reaction after sand finish, ensure mortar later strength.
Walling of the present invention is wiped one's face and is referred to that the new wall material that building rubble powder and natural sand and inorganic coagulation material, additive, polypropylene anti-crack fiber carry out physical mixed is by a certain percentage wiped one's face with being dry mixed material with being dry mixed material.Be transported to building site with form packed or in bulk, the stirring that adds water can use, very convenient.Compared with traditional plastering mortar, new wall material is wiped one's face and to be had the following advantages with being dry mixed material: (1) is best in quality; (2) steady quality; (3) have good workability; (4) easy to use; (5) environmental protection; (6) price economy is moderate.Wherein natural sand price is about 75 yuan/ton (water ratio about 8%), and the cost of rubble powder only has 35 yuan/ton (water ratio about 3%), rubble powder with weight only account for natural sand price half less than, and while using rubble powder can reduce outdoor pollution, decrease the demand to natural sand resource, greatly reduce the destruction to environment.
Beneficial effect of the present invention: adopt the present invention to fill a prescription and obtained be dry mixed material, ensure wipe one's face be dry mixed material property prerequisite under, utilize rubble powder to substitute natural sand to do to gather materials and prepare plastering mortar, so both can solve rubble powder and arbitrarily stack environmental pollution problem, and plastering mortar performance can also have been improved simultaneously, plastering mortar cost can be reduced again.And utilize polypropylene anti-crack fiber to mix in mortar, make the effect of prestressed of plastering mortar very splendid.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, and provides embodiment.
Embodiment 1-8, each group of different material is taken according to the quality mixture ratio in table 1, mix, add the water uniform stirring of the 18-20% of each group of total amount, this tests cement used is the P.O42.5 ordinary Portland cement that Shandong scenery with hills and waters Group Co., Ltd produces, and flyash is the F class II level flyash that Taizhou Power Plant is produced, natural sand is the Min River, Fujian sand, fineness modulus is 2.3, and rubble powder is below 3.25mm particle powder after rock failure, and fineness modulus is 1.8.
Table 1
As can be seen from table 1 test-results, along with the volume of rubble powder increases, water consumption, the water retention being dry mixed material of wiping one's face increases all gradually, because fine powder material content is larger relative to natural sand content in rubble powder, therefore the mixing water reaching identical denseness can increase, and rubble powder has promoter action to Water-saving effect, therefore water retention increases gradually; Apparent density, ultimate compression strength, cohesive strength decline along with the volume increase of rubble powder first raises again, because along with the volume of rubble powder increases, change grading of aggregate, in embodiment 1-4, grating is become better and better, therefore the degree of compactness being dry mixed material of wiping one's face increases, and therefore strength increases is high, but strengthens along with the volume of rubble powder, as can be seen from embodiment 5-8, excessive broken stone powder mixing quantity, worse and worse, therefore performance also declines grading of aggregate gradually; Shrinkage value is also change along with the grating of aggregate, and in this group test, the grading of aggregate of example 4 is best, and shrinkage value is minimum.
Embodiment 9-16, take each assembly composition and division in a proportion raw material according to the quality mixture ratio in table 2 to mix, the water adding the 18-20% accounting for weight stirs, this tests cement used is the P.O42.5 ordinary Portland cement that Shandong scenery with hills and waters Group Co., Ltd produces, flyash is the F class II level flyash that Taizhou Power Plant is produced, and natural sand is the medium sand in the Min River, Fujian, and fineness modulus is 2.3, rubble powder is below 3mm particle powder after rock failure, and fineness modulus is 1.8.The diameter 45 μm that polypropylene fibre is produced by Beijing Ai Paier Science and Technology Ltd., the pencil monofilament of length 6-8mm, tensile strength >=500MPa.
Table 2
From table 2 embodiment 9-13 data, along with mixing of polypropylene fibre, ultimate compression strength, cohesive strength increase gradually, and shrinking percentage reduces gradually; To analyze reason be polypropylene fibre wipe one's face be dry mixed the adding of material after random distribution, can increase the cohesiveness of mixture inside, by mixture by filament together with gelling material by one, slurry Liancheng entirety, because of cracking that construction wrong or insufficient strength cause when can effectively avoid wiping one's face.
From embodiment 14-16 data, wipe one's face be dry mixed material ultimate compression strength, cohesive strength comparatively embodiment 13 reduce gradually, shrinkage value increases gradually, therefore, add dispersion poor effect when excessive polypropylene fibre can cause stirring, too much polypropylene fibre mixes that Hui Shi department polypropylene fibre is agglomerating, knotting, causes polypropylene fibre random distribution uneven, thus causes mortar performance to decline.
Claims (7)
1. a walling is wiped one's face with being dry mixed material, it is characterized in that, according to mass percentage, composed of the following components: cement 13-18%, flyash 8-12%, natural sand 39-45%, rubble powder 28-35%, additive 0.8-1.8 ‰, polypropylene fibre: 0.1-0.2%.
2. a kind of walling according to claim 1 is wiped one's face with being dry mixed material, it is characterized in that, according to mass percentage, composed of the following components: cement 13-15%, flyash 10-12%, natural sand 40-42%, rubble powder 33-35%, additive 1.2-1.8 ‰, polypropylene fibre: 0.1-0.2%.
3. a kind of walling according to claim 1 and 2 is wiped one's face with being dry mixed material, it is characterized in that described additive is the mixture of any one or more in wilkinite, hydroxypropyl methyl cellulose ether, redispersable latex powder.
4. a kind of walling according to claim 3 is wiped one's face with being dry mixed material, and it is characterized in that described wilkinite accounts for walling and wipes one's face with the 0.5-0.9 ‰ being dry mixed material, described hydroxypropyl methyl cellulose ether accounts for walling and wipes one's face with the 0.1-0.15 ‰ being dry mixed material; Described redispersable latex powder accounts for walling and wipes one's face with the 0.2-0.75 ‰ being dry mixed material.
5. a kind of walling according to claim 1 and 2 is wiped one's face with being dry mixed material, and it is characterized in that described rubble powder maximum particle diameter is 3.25mm, fineness modulus is 1.8.
6. a kind of walling according to claim 1 and 2 is wiped one's face with being dry mixed material, it is characterized in that the ratio of described rubble powder and natural sand is rubble powder: natural sand=1:1.0-1.5.
7. a kind of walling according to claim 1 is wiped one's face with being dry mixed material, it is characterized in that described polypropylene fibre is formed by propylene polymerization, and its diameter is 45 μm, and length is 6-8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510151042.XA CN104829172B (en) | 2015-04-01 | 2015-04-01 | A kind of walling is wiped one's face with dry-mixed material |
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| CN201510151042.XA CN104829172B (en) | 2015-04-01 | 2015-04-01 | A kind of walling is wiped one's face with dry-mixed material |
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| CN104829172A true CN104829172A (en) | 2015-08-12 |
| CN104829172B CN104829172B (en) | 2018-01-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105801055A (en) * | 2016-04-01 | 2016-07-27 | 重庆市胡特建材有限公司 | Novel anti-crack mortar and preparation method thereof |
| CN109592934A (en) * | 2017-12-19 | 2019-04-09 | 杭州墨泰科技股份有限公司 | A kind of interfacial agents for mechanized construction |
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| CN1939871A (en) * | 2005-09-27 | 2007-04-04 | 同济大学 | Non-cracking building mortar |
| CN1966447A (en) * | 2006-07-25 | 2007-05-23 | 上海飞步建材有限公司 | Thickening powder |
| CN102093021A (en) * | 2010-12-28 | 2011-06-15 | 济南高新区工业废弃物利用研发中心 | Slag micro-powder dry mixed mortar |
| CN102276217A (en) * | 2011-05-18 | 2011-12-14 | 天津宝磊伟业干粉砂浆有限公司 | Environment-friendly dry powder mortar |
| CN103922667A (en) * | 2014-03-25 | 2014-07-16 | 广西鱼峰集团有限公司 | Limestone machine-made sand dry-mixed mortar and preparation method thereof |
| CN104211338A (en) * | 2014-08-28 | 2014-12-17 | 成都市容德建筑劳务有限公司 | Crack-resisting composite mortar |
-
2015
- 2015-04-01 CN CN201510151042.XA patent/CN104829172B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1939871A (en) * | 2005-09-27 | 2007-04-04 | 同济大学 | Non-cracking building mortar |
| CN1966447A (en) * | 2006-07-25 | 2007-05-23 | 上海飞步建材有限公司 | Thickening powder |
| CN102093021A (en) * | 2010-12-28 | 2011-06-15 | 济南高新区工业废弃物利用研发中心 | Slag micro-powder dry mixed mortar |
| CN102276217A (en) * | 2011-05-18 | 2011-12-14 | 天津宝磊伟业干粉砂浆有限公司 | Environment-friendly dry powder mortar |
| CN103922667A (en) * | 2014-03-25 | 2014-07-16 | 广西鱼峰集团有限公司 | Limestone machine-made sand dry-mixed mortar and preparation method thereof |
| CN104211338A (en) * | 2014-08-28 | 2014-12-17 | 成都市容德建筑劳务有限公司 | Crack-resisting composite mortar |
Non-Patent Citations (2)
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| 文梓芸等主编: "《混凝土工程与技术》", 31 December 2004, 武汉理工大学出版社 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105801055A (en) * | 2016-04-01 | 2016-07-27 | 重庆市胡特建材有限公司 | Novel anti-crack mortar and preparation method thereof |
| CN109592934A (en) * | 2017-12-19 | 2019-04-09 | 杭州墨泰科技股份有限公司 | A kind of interfacial agents for mechanized construction |
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| Publication number | Publication date |
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| CN104829172B (en) | 2018-01-16 |
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Address after: Taizhou City, Zhejiang province 317000 coastal ocean office five hole village Applicant after: ZHEJIANG ZHONGXIN NEW BUILDING MATERIALS Co.,Ltd. Address before: Taizhou City, Zhejiang province 317000 coastal ocean office five hole village Applicant before: ZHEJIANG ZHONGXIN NEW BUILDING MATERIALS CO.,LTD. |
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| CB03 | Change of inventor or designer information | ||
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Inventor after: Hang Fafu Inventor after: He Jiehong Inventor before: He Jiehong |
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Effective date of registration: 20220718 Address after: 317000 wukong'ao village, Dayang office, Linhai City, Taizhou City, Zhejiang Province Patentee after: Linhai Zhongxin new building materials Co.,Ltd. Address before: 317000 wukong'ao village, Dayang office, Linhai City, Taizhou City, Zhejiang Province Patentee before: ZHEJIANG ZHONGXIN NEW BUILDING MATERIALS Co.,Ltd. |